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  2. Autoclaved aerated concrete - Wikipedia

    en.wikipedia.org/wiki/Autoclaved_aerated_concrete

    Reinforced autoclaved aerated concrete (RAAC) is a reinforced version of autoclaved aerated concrete, commonly used in roofing and wall construction. The first structural reinforced roof and floor panels were manufactured in Sweden. Soon after, the first autoclaved aerated concrete block plant started there in 1929.

  3. The Conco Companies - Wikipedia

    en.wikipedia.org/wiki/The_Conco_Companies

    Conco provides concrete services for the Western U.S. that include professional concrete building design, formwork, reinforcement, shotcrete, pumping, and place and finish. In addition, Conco is one of the largest independent reinforcing steel and post tension contractors on the West Coast, with state-of-the-art rebar fabrication facilities in ...

  4. What is RAAC concrete? How to tell if school buildings are at ...

    www.aol.com/raac-concrete-tell-school-buildings...

    Reinforced autoclaved aerated concrete (RAAC) is a lightweight form of concrete that was used in schools, colleges and other building construction from the 1950s until the mid-1990s, according to ...

  5. California Contractors State License Board - Wikipedia

    en.wikipedia.org/wiki/California_Contractors...

    This Board includes five contractors, one member of a labor organization representing building trades, one active local building official, and eight public members, one who must be from a statewide senior citizen organization. Appointments to the board are made by the Governor of California and the California State Legislature.

  6. Concrete block - Wikipedia

    en.wikipedia.org/wiki/Concrete_block

    A pallet of "8-inch" concrete blocks An interior wall of painted concrete blocks Concrete masonry blocks A building constructed with concrete masonry blocks. A concrete block, also known as a cinder block in North American English, breeze block in British English, or concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction.

  7. Operative Plasterers' and Cement Masons' International ...

    en.wikipedia.org/wiki/Operative_Plasterers'_and...

    The Operative Plasterers' and Cement Masons' International Association of the United States and Canada (OPCMIA) is a trade union of plasterers and cement masons in the construction industry in the United States and Canada. Members of the union finish interior walls and ceilings of buildings and apply plaster on masonry, metal, and wire lath or ...

  8. Home Builders Association of Northern California - Wikipedia

    en.wikipedia.org/wiki/Home_Builders_Association...

    The Home Builders Association of Northern California is a professional, non-profit association which promotes affordable housing and the construction of quality homes in California, USA. HBANC's membership comprises about 1,000 home builders , trade contractors, suppliers and industry professionals in the Bay Area .

  9. International Union of Bricklayers and Allied Craftworkers

    en.wikipedia.org/wiki/International_Union_of...

    The International Union of Bricklayers and Allied Craftworkers (BAC) is a labor union in the United States and Canada which represents bricklayers, restoration specialists, pointers/cleaners/caulkers, stonemasons, marble masons, cement masons, plasterers, tile setters, terrazzo mechanics, and tile, marble and terrazzo finishers.